OK whilst I/m selling stiff tonight came across these taht are gathering dust

These are not your normal noise cancelling earphones which just bung up your ear, but active noise cancelling with a little box of tricks that produces a very low level of white noise that blocks out background noise

Specs are

Keep enjoying your music even in noisy environments like on an airplane. This headphone's Active Noise Reduction cuts out the background noise that spoils the listening experience, and delivers pure sound on the move. And its smooth, dual-cone earplugs fit comfortably in your ears. It's compatible with most airplane sound systems and almost every portable audio device.